ZIP Code 12791

12791 is one of New York's ZIP codes, delivering to addresses in Youngsville, Sullivan County.

City: Youngsville
County: Sullivan County
State: New York
Prefix: 127xx

Where this code sits

12791 is part of the 127xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Youngsville.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 12791 delivers to without sharing its boundary.

ZIP codes nearest 12791

The ZIP codes whose reference points sit closest to 12791.
ZIP code	Distance	Delivers to
ZIP code 12748	2.3 mi	Jeffersonville, NY
ZIP code 12787	3.1 mi	White Sulphur Springs, NY
ZIP code 12724	3.8 mi	Callicoon Center, NY
ZIP code 12766	4.9 mi	North Branch, NY
ZIP code 12783	5.9 mi	Swan Lake, NY
ZIP code 12758	6.1 mi	Livingston Manor, NY
ZIP code 12750	6.3 mi	Kenoza Lake, NY
ZIP code 12767	6.7 mi	Obernburg, NY

Straight-line distance between place reference points, not driving distance. Where a place has no Census Gazetteer point, its postal centroid is used instead.

Each point is the reference point for 12791, plotted from its record coordinates.

Reference points and footprint
Not an official NANPA boundary
Not a USPS delivery area

Scope ZIP code 12791. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. A ZIP code is a set of delivery routes, not an area; the point shown is a record coordinate, not a centre.